/*
 * Copyright 2015 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

#include "src/gpu/ganesh/GrDrawOpTest.h"

#include "include/core/SkTypes.h"
#include "include/private/gpu/ganesh/GrContext_Base.h"
#include "src/base/SkRandom.h"
#include "src/gpu/ganesh/GrBaseContextPriv.h"
#include "src/gpu/ganesh/GrCaps.h"
#include "src/gpu/ganesh/GrUserStencilSettings.h"

#if defined(GR_TEST_UTILS)

const GrUserStencilSettings *GrGetRandomStencil(SkRandom *random, GrContext_Base *context)
{
    if (context->priv().caps()->avoidStencilBuffers()) {
        return &GrUserStencilSettings::kUnused;
    }
    static constexpr GrUserStencilSettings kReads(GrUserStencilSettings::StaticInit<0x8080, GrUserStencilTest::kLess,
        0xffff, GrUserStencilOp::kKeep, GrUserStencilOp::kKeep, 0xffff>());
    static constexpr GrUserStencilSettings kWrites(GrUserStencilSettings::StaticInit<0xffff, GrUserStencilTest::kAlways,
        0xffff, GrUserStencilOp::kReplace, GrUserStencilOp::kReplace, 0xffff>());
    static constexpr GrUserStencilSettings kReadsAndWrites(GrUserStencilSettings::StaticInit<0x8000,
        GrUserStencilTest::kEqual, 0x6000, GrUserStencilOp::kIncWrap, GrUserStencilOp::kInvert, 0x77ff>());

    static const GrUserStencilSettings* kStencilSettings[] = {
            &GrUserStencilSettings::kUnused,
            &kReads,
            &kWrites,
            &kReadsAndWrites,
    };
    return kStencilSettings[random->nextULessThan(std::size(kStencilSettings))];
}

#endif
